OVERVIEW

Official designation: Allen-Bradley 1745-E154 (SLC 150, I/O Expansion Unit)

Role/Application: An I/O expansion module for the SLC 150 controller, offering 20 digital inputs and 12 PNP (sourcing) transistor outputs, and using CMOS RAM for memory.

KEY SPECS SUMMARY

Power: 10 to 30V DC input range

Interfaces / Ports: 20 input, 12 output terminals

Indicators: Refer to the latest manufacturer manual.

Operating Temp: 0 degrees C to 60 degrees C

Platform / Compatibility: SLC 150 Controller

Limit: Capacitor backup for memory

Lifecycle: Discontinued, Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the primary characteristics of the 12 output points on the 1745-E154 module?

A: The outputs are 12 PNP or sourcing transistor outputs with a DC voltage range.

Wiring & Installation:

Q: Which interconnect cable should be used to link the 1745-E154 module to the processor?

A: The required interconnect cable for system expansion is the 1745-C3 communication cable.

Troubleshooting & Compatibility:

Q: What memory type is standard for program storage, and what is the available expansion option?

A: The module utilizes CMOS RAM memory with an available optional EEPROM for backup.

Replacement & Upgrades:

Q: What is the current manufacturer status for the 1745-E154 and are there direct modern replacements?

A: Refer to the latest manufacturer manual for official modern alternatives to this obsolete unit.